Generalized Perceptual Features for Vocalization Analysis Across Multiple Species. - Patrick J. Clemins; Marek B. Trawicki; Kuntoro Adi; Jidong Tao; Michael T. Johnson (ICASSP (1), 2006)

Unsupervised validity measures for vocalization clustering. - Kuntoro Adi; Kristine E. Sonstrom; Peter M. Scheifele; Michael T. Johnson (ICASSP, 2008)